<style scoped>
.action-link {
  cursor: pointer;
}

.m-b-none {
  margin-bottom: 0;
}
</style>

<template>
  <div>
    <div class="panel panel-default">
      <div class="panel-heading">
        <div style="display: flex; justify-content: space-between; align-items: center;">
          <span>
                        OAuth Clients
                    </span>
          <a class="action-link" @click="showCreateClientForm">
                        Create New Client
                    </a>
        </div>
      </div>
      <div class="panel-body">
        <!-- Current Clients -->
        <p class="m-b-none" v-if="clients.length === 0">
          You have not created any OAuth clients.
        </p>
        <table class="table table-borderless m-b-none" v-if="clients.length > 0">
          <thead>
            <th>Client ID</th>
            <th>Name</th>
            <th>Secret</th>
            <th></th>
            <th></th>
          </thead>
          <tbody>
            <tr v-for="client in clients">
              <!-- ID -->
              <td style="vertical-align: middle;">
                {{ client.id }}
              </td>
              <!-- Name -->
              <td style="vertical-align: middle;">
                {{ client.name }}
              </td>
              <!-- Secret -->
              <td style="vertical-align: middle;">
                <code>{{ client.secret }}</code>
              </td>
              <!-- Edit Button -->
              <td style="vertical-align: middle;">
                <a class="action-link" @click="edit(client)">
                                    Edit
                                </a>
              </td>
              <!-- Delete Button -->
              <td style="vertical-align: middle;">
                <a class="action-link text-danger" @click="destroy(client)">
                                    Delete
                                </a>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
    </div>
    <!-- Create Client Modal -->
    <div class="modal fade" id="modal-create-client" tabindex="-1" role="dialog">
      <div class="modal-dialog">
        <div class="modal-content">
          <div class="modal-header">
            <button type="button " class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
            <h4 class="modal-title">
                            Create Client
                        </h4>
          </div>
          <div class="modal-body">
            <!-- Form Errors -->
            <div class="alert alert-danger" v-if="createForm.errors.length > 0">
              <p><strong>Whoops!</strong> Something went wrong!</p>
              <br>
              <ul>
                <li v-for="error in createForm.errors">
                  {{ error }}
                </li>
              </ul>
            </div>
            <!-- Create Client Form -->
            <form class="form-horizontal" role="form">
              <!-- Name -->
              <div class="form-group">
                <label class="col-md-3 control-label">Name</label>
                <div class="col-md-7">
                  <input id="create-client-name" type="text" class="form-control" @keyup.enter="store" v-model="createForm.name">
                  <span class="help-block">
                                        Something your users will recognize and trust.
                                    </span>
                </div>
              </div>
              <!-- Redirect URL -->
              <div class="form-group">
                <label class="col-md-3 control-label">Redirect URL</label>
                <div class="col-md-7">
                  <input type="text" class="form-control" name="redirect" @keyup.enter="store" v-model="createForm.redirect">
                  <span class="help-block">
                                        Your application's authorization callback URL.
                                    </span>
                </div>
              </div>
            </form>
          </div>
          <!-- Modal Actions -->
          <div class="modal-footer">
            <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
            <button type="button" class="btn btn-primary" @click="store">
              Create
            </button>
          </div>
        </div>
      </div>
    </div>
    <!-- Edit Client Modal -->
    <div class="modal fade" id="modal-edit-client" tabindex="-1" role="dialog">
      <div class="modal-dialog">
        <div class="modal-content">
          <div class="modal-header">
            <button type="button " class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
            <h4 class="modal-title">
                            Edit Client
                        </h4>
          </div>
          <div class="modal-body">
            <!-- Form Errors -->
            <div class="alert alert-danger" v-if="editForm.errors.length > 0">
              <p><strong>Whoops!</strong> Something went wrong!</p>
              <br>
              <ul>
                <li v-for="error in editForm.errors">
                  {{ error }}
                </li>
              </ul>
            </div>
            <!-- Edit Client Form -->
            <form class="form-horizontal" role="form">
              <!-- Name -->
              <div class="form-group">
                <label class="col-md-3 control-label">Name</label>
                <div class="col-md-7">
                  <input id="edit-client-name" type="text" class="form-control" @keyup.enter="update" v-model="editForm.name">
                  <span class="help-block">
                                        Something your users will recognize and trust.
                                    </span>
                </div>
              </div>
              <!-- Redirect URL -->
              <div class="form-group">
                <label class="col-md-3 control-label">Redirect URL</label>
                <div class="col-md-7">
                  <input type="text" class="form-control" name="redirect" @keyup.enter="update" v-model="editForm.redirect">
                  <span class="help-block">
                                        Your application's authorization callback URL.
                                    </span>
                </div>
              </div>
            </form>
          </div>
          <!-- Modal Actions -->
          <div class="modal-footer">
            <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
            <button type="button" class="btn btn-primary" @click="update">
              Save Changes
            </button>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  /*
   * The component's data.
   */
  data() {
    return {
      clients: [],

      createForm: {
        errors: [],
        name: '',
        redirect: ''
      },

      editForm: {
        errors: [],
        name: '',
        redirect: ''
      }
    };
  },

  /**
   * Prepare the component.
   */
  mounted() {
    this.getClients();

    $('#modal-create-client').on('shown.bs.modal', () => {
      $('#create-client-name').focus();
    });

    $('#modal-edit-client').on('shown.bs.modal', () => {
      $('#edit-client-name').focus();
    });
  },

  methods: {
    /**
     * Get all of the OAuth clients for the user.
     */
    getClients() {
      this.$http.get('/oauth/clients')
        .then(response => {
          this.clients = response.data;
        });
    },

    /**
     * Show the form for creating new clients.
     */
    showCreateClientForm() {
      $('#modal-create-client').modal('show');
    },

    /**
     * Create a new OAuth client for the user.
     */
    store() {
      this.persistClient(
        'post', '/oauth/clients',
        this.createForm, '#modal-create-client'
      );
    },

    /**
     * Edit the given client.
     */
    edit(client) {
      this.editForm.id = client.id;
      this.editForm.name = client.name;
      this.editForm.redirect = client.redirect;

      $('#modal-edit-client').modal('show');
    },

    /**
     * Update the client being edited.
     */
    update() {
      this.persistClient(
        'put', '/oauth/clients/' + this.editForm.id,
        this.editForm, '#modal-edit-client'
      );
    },

    /**
     * Persist the client to storage using the given form.
     */
    persistClient(method, uri, form, modal) {
      form.errors = [];

      this.$http[method](uri, form)
        .then(response => {
          this.getClients();

          form.name = '';
          form.redirect = '';
          form.errors = [];

          $(modal).modal('hide');
        })
        .catch(response => {
          if (typeof response.data === 'object') {
            form.errors = _.flatten(_.toArray(response.data));
          } else {
            form.errors = ['Something went wrong. Please try again.'];
          }
        });
    },

    /**
     * Destroy the given client.
     */
    destroy(client) {
      this.$http.delete('/oauth/clients/' + client.id)
        .then(response => {
          this.getClients();
        });
    }
  }
}
</script>
